Chemical treatment of fuel



Patented Feb. 14, 1939 UNITED STATES PATENT OFFICE No Drawing. Application March 31, 1936, Serial No. 71,963

6 Claims.

This invention relates to an improved fuel which is particularly adapted for use in internal combustion engines.

The object of the invention is to provide a fuel 5 for internal combustion engines of the type now generally used in automobiles, tractors and the like, which will increase the efiiciency and reduce the cost of maintaining such engines.

' In its broader aspect the invention consists in lo the addition of dinitrophenol to gasoline, naphtha, or other petroleum distillate or distillate mixtures.

It has been found that, when relatively small amounts of dinitrophenol are added to ordinary gasoline, a cleaner and more efficient combustion is obtained and more power developed as evidenced by the failure to deposit appreciable quantitles of carbon.

The amount of dinitrophenol which is to be added to the petroleum distillate will vary in accordance with the character and physical properties of the latter, but as illustrative of the manner in which the invention may be carried out, the following examples are cited.

Example 1 Approximately, five pounds of 2,4 dinitrophenol is placed in any suitable mixing apparatus and then five thousand gallons of a petroleum dis- 0 tillate having a gravity of from 48 to 52 A. P. I., a boiling point of from 230 to 250 F. and an end point of approximately 475 F., is added. Solution of the dinitrophenol in the petroleum distillate is then efiected by mixing or agitating the fluid, agitation for from one-half to one hour being usually suficient.

Example 2 Approximately, eleven pounds of 2,4 dinitrophenol is placed in a suitable mixing apparatus and to it is added five thousand gallons of a petroleum distillate having a gravity of from 38 to 40 A. P. I., a boiling point of from 230 to 250 F. and an 'end point of approximately 5 475 F. Solution is then effected as in Example 1.

Example 3 and additional gasoline may be added after transportation.

If it is desired to color the gasoline, approximately one ounce of any suitable dye may be added.

Although the use of 2,4 dinitrophenol has been mentioned in the above examples, I may also use any of the isomers of that compound, as for example, 2,3 dinitrophenol, 2,6 dinitrophenol, 3,4 dinitrophenol and 3,5 dinitrophenol.

It will be obvious that petroleum distillates having properties other than those set forth in the examples, may be used, and that it may be convenient to vary the amounts of dinitrophenol which is dissolved, depending on the properties of the fuel base, in order to obtain the desired results. The examples given are illustrative of preferred embodiments of this invention, and are not to be regarded as limiting the annexed claims.

I claim:

1. A fuel for internal combustion engines comprising a petroleum distillate and a dinitrophenol.

2. A fuel for internal combustion engines comprising a petroleum distillate and 2,4 dinitrophenol.

3. A fuel for internal combustion engines comprising a petroleum distillate and dinitrophenol in amounts equivalent to a ratio of about five thousand gallons of the former to from one to fifteen pounds of the latter.

4. A fuel for internal combustion engines comprising a petroleum distillate having a gravity of approximately 50 and dinitrophenol in amounts equivalent to a ratio of about five thousand gallons of the formerito five pounds of the latter.

5. A fuel for internal combustion engines comprising a petroleum distillate having a specific gravity of about 60 and dinitrophenol in amounts equivalent to a ratio of about five thousand gallons of the former to five pounds of the latter.

6. A fuel for internal combustion engines comprising a petroleum distillate having a gravity of about 40 and dinitrophenol in amounts equivalent to approximately five thousand gallons of the former to eleven pounds of the latter.

WALTER D JENSEN. 

